STMicroelectronics

STG5123DTR

STG5123DTR Description

The STG5123DTR is a high-performance analog switch designed by STMicroelectronics, featuring a single-pole double-throw (SPDT) configuration. This device is optimized for low on-state resistance (1.2Ω max) and low leakage current (20nA max), making it ideal for applications requiring minimal power loss and high signal integrity. The STG5123DTR operates within a wide supply voltage range of 1.65V to 4.5V, ensuring compatibility with various power supply configurations. Its 2:1 multiplexer/demultiplexer circuit allows for efficient signal routing, while the 150MHz -3dB bandwidth ensures high-frequency performance. The device is housed in a surface-mount 6DFN package, suitable for compact and high-density PCB designs. Despite its obsolescence, the STG5123DTR remains a reliable choice for applications where its unique features are required.

STG5123DTR Features

• Low On-State Resistance: The STG5123DTR boasts a maximum on-state resistance of 1.2Ω, ensuring minimal power dissipation and high efficiency in signal transmission.
• Low Leakage Current: With a maximum leakage current of 20nA, the STG5123DTR maintains high signal integrity, making it suitable for low-power and sensitive applications.
• Wide Supply Voltage Range: The device operates within a supply voltage range of 1.65V to 4.5V, providing flexibility in power supply design.
• High Bandwidth: The -3dB bandwidth of 150MHz ensures excellent performance in high-frequency applications, making it suitable for analog and mixed-signal circuits.
• Low Charge Injection: The 33pC charge injection minimizes signal distortion, ensuring high-fidelity signal switching.
• Fast Switching Times: The STG5123DTR features fast switch times of 28ns for turn-on and 21ns for turn-off, enabling rapid signal routing and minimal signal delay.
• Surface-Mount Package: The 6DFN package is ideal for compact and high-density PCB designs, facilitating easy integration into modern electronic systems.
• Compliance: The STG5123DTR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

STG5123DTR Applications

The STG5123DTR is well-suited for a variety of applications due to its high performance and versatile features. Some specific use cases include:

• Audio Signal Routing: The low on-state resistance and high bandwidth make it ideal for routing audio signals in high-fidelity audio systems, ensuring minimal signal degradation.
• Data Acquisition Systems: The fast switching times and low charge injection are beneficial for data acquisition systems where rapid signal switching and minimal distortion are critical.
• Communication Systems: The wide supply voltage range and high bandwidth support various communication protocols, making it suitable for signal switching in communication systems.
• Medical Equipment: The low leakage current and high signal integrity are crucial for medical devices where precision and reliability are paramount.
• Industrial Control Systems: The robust performance and compliance with environmental standards make it ideal for industrial applications requiring reliable signal switching.

Conclusion of STG5123DTR

The STG5123DTR, despite being obsolete, remains a valuable component in the electronics industry due to its unique combination of low on-state resistance, low leakage current, and high bandwidth. Its fast switching times and low charge injection make it suitable for applications requiring high signal integrity and minimal distortion. The surface-mount package and compliance with environmental standards further enhance its appeal for modern electronic designs. While newer alternatives may exist, the STG5123DTR continues to be a reliable choice for applications where its specific features are required.